This app is a great app for checking the density of around 400 materials , these materials are listed and categorized , beside the material density you have many geometrical shapes and can get the volume , weight and area , generally you can find in the material calculator app the following features :- 1.This app calculate volume , weight and area for a lot of geometric solids. 2.The app is a pocket information bank for students , engineers and technical people also it can be for kids. 3. Thi